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1.33 wred ip-precedence
Syntax
wred ip-precedence value low-limit low-limit high-limit high-limit
[ discard-probability discard-prob ]
undo wred ip-precedence value
View
Policy-class view
Parameter
value: Precedence of IP packets in the range of 0 to 7.
low-limit: Lower threshold value in the range of 1 to 1024. It is 10 by default.
high-limit: Upper threshold value in the range of 1 to 1024. It is 30 by default.
discard-prob: Denominator of drop proportion in the range of 1 to 255. It is 10 by
default.
Description
Using wred ip-precedence command, you can set precedence lower-limit,
upper-limit and drop proportion denominator of WRED. Using undo wred
ip-precedence command, you can remove the configuration.
This command can be used only after the wred command has been used to enable
WRED drop mode based on DSCP. The configuration of wred will be deleted if the
configuration of qos wred is deleted.
The configuration of drop parameters will be deleted if af is deleted.
For the related command, see qos policy, qos-class.
Example
Set lower-limit to 20, upper-limit to 40 and discard probability to 15 for the packet with
the precedence 3.
[3Com] qos policy 3Com
[3Com-qospolicy-3Com] qos-class database
[3Com-qospolicy-c-3Com database] wred
[3Com-qospolicy-c-3Com database] wred ip-precedence 3 low-limit 20 high-limit
40 discard-probability 15
3Com Router Command Reference Guide Addendum for V1.2
33